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1.1 These methods cover procedures for sampling and testing untreated mica paper to be used as an electrical insulator or as a constituent of a composite material used for electrical insulating purposes.
1.2 The procedures appear in the following order:
|Aqueous Extract Conductivity||32 and 33||D 202|
|Dielectric Strength||16-19||D 149|
|Impregnation Time||20-24||D 202|
|Moisture Content||26-28||D 644|
|Tensile Strength||13-15||D 828|
1.3 The values stated in inch-pound units are to be regarded as the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
D202 Test Methods for Sampling and Testing Untreated Paper Used for Electrical Insulation
D374 Test Methods for Thickness of Solid Electrical Insulation (Metric) D0374_D0374M
D644 Test Method for Moisture Content of Paper and Paperboard by Oven Drying
D646 Test Method for Mass Per Unit Area of Paper and Paperboard of Aramid Papers (Basis Weight)
D685 Practice for Conditioning Paper and Paper Products for Testing
D828 Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus
D1711 Terminology Relating to Electrical Insulation
ICS Number Code 29.035.50 (Mica based insulating materials)
UNSPSC Code 14110000(Paper products); 11101501(Mica)
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ASTM D1677-02, Standard Methods for Sampling and Testing Untreated Mica Paper Used for Electrical Insulation, ASTM International, West Conshohocken, PA, 2002, www.astm.orgBack to Top